Then it goes through the bridge (this is where I get confused) does it become then 32v peak 22 RMS because of where I took the reading it now after the bridge which combines both the positive swing and negative swing of the AC signal? and is the 32 volts peak or RMS? and is the 7volts on the output RMS or Peak? I get confused since I associate RMS with an AC signal and once its rectified I feel like it becomes a peak voltage for some reason. So out of the transformer makes sense its 12v RMS which is 16v Peak approx. The only thing I dont quite grasp fully is the RMS and Peak, I do understand the difference but I am trying to make sure I understand the readings on the multimeters mostly. Here is a picture of all the readings one before the bridge one after and one at the final. So I think I figured out the problem was a multisim issue or a part I picked but when I finally switched out the bridge to another model it worked. Is it maybe something im reading wrong or hooked up wrong when doing my readings? I have the oscilloscope is DC coupled.
The input into the LM317 is fluctuating up and down a lot on the oscilloscope but on the multimeter it holds steady at 15volts. Which seems to be the correct voltage on the output but the input is still not working correctly.
The formula I used for the LM 317 was v = 1.25(1+R2/R1) which with my setup should output 7volts. I also wanted to add that the I took out the variable resistor just for testing purposes and put a 1000 ohm one in for R2. Then I tried to add just a 10 to 1 audio transformer but still nothing I keep getting random errors sometimes and it does not want to run. The ratio I used for the transformer was primary to secondary turns = 10. Lol sorry the pic that I took and the one that got posted were completely different! Here is a better one and with the voltage input I was just trying to make sure the transformer was stepping down the voltage correctly so I went with 120 peak because it was just easier to see for me the step down.
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